Research on Visualization Technology of 3D Geological Model for Urban Underground Space
At present,the development of urban underground space informatization is facing key issues which are urgently needed to be solved,such as massive data organization,management,and visualization display.In line with the trend of national new smart city construction,this article proposes and implements a 3D geological model visualization technology for urban underground space,constructs geological 3D model hierarchical data,and forms LOD data according to an irregular quadtree structure.Based on the constructed 3D spatial grid code specification encoding,the fusion of underground space model data infinite approximation with maximum accuracy is achieved using dimensionality reduction and non Boolean operations.And this work adopts a hybrid rendering architecture with multiple rendering engines,which can support multiple engine rendering such as DirectX,WebGL(OpenGL ES),OSG(OpenGL)and Unreal Engine,and achieve realistic visualization and efficient scheduling of TB level underground spatiotemporal data.The result can provide data support and auxiliary decision-making analysis support for the development and utilization of urban underground space.
万方数据
维普
